Insulation Fastener Washers, Caps & Nuts
washers-caps-nuts
![Self-Locking-Washers [Square]](/ImgSmall/Self-Locking-Washers-Square.JPG "Self-Locking-Washers [Square]")
MIDWEST FASTENERS Self-Locking Washers are used in conjunction with MIDWEST FASTENERS weld pins, insul-anchors and lacing anchors to fasten insulation in place. Simply press the self-locking washer onto the pin up to the insulation until the desired position is reached. Then clip off, (or bend over) the remaining portion of pin for a permanent attachment.
Both Round or Square self-locking washers are available as a matter of design or application preference. The domed, multi-lanced hole design provides for ease of locating washer on pin and positive locking. Most styles of washers are manufactured with a beveled edge to prevent the washer from cutting into the insulation facing.
MIDWEST FASTENERS Self-Locking Washers are available according to the chart above and with standard 10 GA, 3mm, 12 GA, or 14 GA hole sizes off-the-shelf. Other material/plating combinations and hole sizes are available by special order.
Please click the Request Information button to configure your Self-Locking Washers (Square).
Self-Locking-Washers-Square.JPG
![Self-Locking-Washers [Round]](/ImgSmall/Self-Locking-Washers-Round.JPG "Self-Locking-Washers [Round]")
MIDWEST FASTENERS Self-Locking Washers are used in conjunction with MIDWEST FASTENERS weld pins, insul-anchors and lacing anchors to fasten insulation in place. Simply press the self-locking washer onto the pin up to the insulation until the desired position is reached. Then clip off, (or bend over) the remaining portion of pin for a permanent attachment.
Both Round or Square self-locking washers are available as a matter of design or application preference. The domed, multi-lanced hole design provides for ease of locating washer on pin and positive locking. Washers are manufactured with a beveled edge to prevent the washer from cutting into the insulation facing.
MIDWEST FASTENERS Self-Locking Washers are available according to the chart above and with standard 10 GA, 3mm, 12 GA, or 14 GA hole sizes off-the-shelf. Other material/plating combinations and hole sizes are available by special order.
Please click the Request Information button to configure your Self-Locking Washers (Round).
Self-Locking-Washers-Round.JPG
Decorative Domed Cap - Aluminum
Self-Locking Insert - Stainless Steel
Application
Designed to permanently lock on to weld pins or insul-anchors where appearance is a major factor, or where no sharp points or edges are permissible on the surface.
Color
Plain (bright aluminum) painted white or black. Other painted colors are available by special order.
Sizes
Available in 10GA, 12GA, 14GA and 3mm.
Please click the Request Information button to configure your Capped Speed Washer. a1025.jpg
Washer - Aluminum or Stainless Steel
Ring - Zinc alloy, bright zinc plated.
Application
Designed to be used with lacing wire to wrap insulation around irregular shapes.
NO-AB
Washers are available stamped 'NO AB' to indicate non-asbestos material.
Please click the Request Information button to configure your Lacing Washer & Ring.
a1026.jpg
Aluminum, Mild Steel and Aluminum
Application
Designed to permanently lock on to Navy annular ring studs.
Size
For or 3/16" diameter studs. MCAL.2022-12_1.jpg
Aluminum
Application
Designed to permanently lock on to annular groove shoulder studs to hold panel in place against stud shoulder.
Size
For 3/16 diameter annular groove a1029.jpg
This tool is recommended for installing the Annular Groove Cap (above). a1030.jpg
Aluminum & Neoprene Rubber.
Application
Designed to be threaded down through pre-drilled holes in the panel on to pre-welded studs providing firm, water resistant attachment.
Size
For 1/4-20 threaded studs. a1031.jpg
Mild Steel - Galvanized.
Application
Designed to lock on to Navy notched end studs. a1028.jpg
Mild Steel. Nickel Plated.
Application
With 10-24 weld studs. One-piece washer-type locknut combination serving as hex nut, lockwasher and flat washer. Design encloses fastener when placed on stud.
Size
For 10-24 threaded studs a1033.jpg
Mild Steel. Zinc Plated.
Application
With 10-24 weld studs. One-piece washer-type locknut combination serving as hex nut, lockwasher and flat washer. Locking design eliminates back-off due to vibration and thermal stress.
Size
For 10-24 threaded studs a1032.jpg
Self-Locking Washers (Square)
Type |
K250 | K150 | K125 |
Diameter |
2-1/2 x 2-1/2 | 1-1/2 x 1-1/2 | 1-1/4 x 1-1/8 |
Thickness |
0.015 nom. | 0.015 nom. | 0.015 nom |
Material |
Mild Steel | Mild Steel | Mild Steel |
Plating |
Galv. | Galv. | Galv. |
Edges / flat or beveled |
beveled | beveled | beveled |
Other materials available |
Alum., S.S. | Alum., S.S. | Alum., S.S. |
Packaged per carton |
1000 | 1000 | 1000 |
MIDWEST FASTENERS Self-Locking Washers are used in conjunction with MIDWEST FASTENERS weld pins, insul-anchors and lacing anchors to fasten insulation in place. Simply press the self-locking washer onto the pin up to the insulation until the desired position is reached. Then clip off, (or bend over) the remaining portion of pin for a permanent attachment.
Both Round or Square self-locking washers are available as a matter of design or application preference. The domed, multi-lanced hole design provides for ease of locating washer on pin and positive locking. Most styles of washers are manufactured with a beveled edge to prevent the washer from cutting into the insulation facing.
MIDWEST FASTENERS Self-Locking Washers are available according to the chart above and with standard 10 GA, 3mm, 12 GA, or 14 GA hole sizes off-the-shelf. Other material/plating combinations and hole sizes are available by special order.
Self-Locking Washers (Round)
Type |
K100 | K120 | K150 | K200 |
Diameter |
1" | 1-3/16" | 1-1/2" | 2" |
Thickness |
0.015 nom. | 0.015 nom. | 0.015 nom. | 0.015 nom |
Material |
Mild Steel | Mild Steel | Mild Steel | Mild Steel |
Plating |
Galv. | Galv. | Galv. | Galv. |
Edges / flat or beveled |
Flat | Beveled | Beveled | Beveled |
Other materials available |
Alum., S.S. | Alum., S.S. | Alum., S.S. | Alum., S.S. |
Packaged per carton |
1000 | 1000 | 1000 | 1000 |
MIDWEST FASTENERS Self-Locking Washers are used in conjunction with MIDWEST FASTENERS weld pins, insul-anchors and lacing anchors to fasten insulation in place. Simply press the self-locking washer onto the pin up to the insulation until the desired position is reached. Then clip off, (or bend over) the remaining portion of pin for a permanent attachment.
Both Round or Square self-locking washers are available as a matter of design or application preference. The domed, multi-lanced hole design provides for ease of locating washer on pin and positive locking. Washers are manufactured with a beveled edge to prevent the washer from cutting into the insulation facing.
MIDWEST FASTENERS Self-Locking Washers are available according to the chart above and with standard 10 GA, 3mm, 12 GA, or 14 GA hole sizes off-the-shelf. Other material/plating combinations and hole sizes are available by special order.
Capped Speed Washer
MaterialsDecorative Domed Cap - Aluminum
Self-Locking Insert - Stainless Steel
Application
Designed to permanently lock on to weld pins or insul-anchors where appearance is a major factor, or where no sharp points or edges are permissible on the surface.
Color
Plain (bright aluminum) painted white or black. Other painted colors are available by special order.
Sizes
Available in 10GA, 12GA, 14GA and 3mm.
Please click the Request Information button to configure your Capped Speed Washer. a1025.jpg
Lacing Washer & Ring
MaterialsWasher - Aluminum or Stainless Steel
Ring - Zinc alloy, bright zinc plated.
Application
Designed to be used with lacing wire to wrap insulation around irregular shapes.
NO-AB
Washers are available stamped 'NO AB' to indicate non-asbestos material.
Annular Ring Navy Cap (For Annular Ring Studs)
MaterialsAluminum, Mild Steel and Aluminum
Application
Designed to permanently lock on to Navy annular ring studs.
Size
For or 3/16" diameter studs. MCAL.2022-12_1.jpg
Annular Groove Cap (For Annular Groove Shoulder Studs)
MaterialsAluminum
Application
Designed to permanently lock on to annular groove shoulder studs to hold panel in place against stud shoulder.
Size
For 3/16 diameter annular groove a1029.jpg
Cap Setting Tool (For WAG AL Annular Groove Caps)
ApplicationThis tool is recommended for installing the Annular Groove Cap (above). a1030.jpg
Panel Nut (For 1/4-20 Threaded Studs)
MaterialsAluminum & Neoprene Rubber.
Application
Designed to be threaded down through pre-drilled holes in the panel on to pre-welded studs providing firm, water resistant attachment.
Size
For 1/4-20 threaded studs. a1031.jpg
Key Hole Slotted Washer (For 3/16" Dia. Notched End Studs)
MaterialsMild Steel - Galvanized.
Application
Designed to lock on to Navy notched end studs. a1028.jpg
Combination Hex-Nut and Lock-Washer (Closed) for 10-24 Threaded Studs
MaterialsMild Steel. Nickel Plated.
Application
With 10-24 weld studs. One-piece washer-type locknut combination serving as hex nut, lockwasher and flat washer. Design encloses fastener when placed on stud.
Size
For 10-24 threaded studs a1033.jpg
Combination Hex-Nut and Lock-Washer (Open) for 10-24 Threaded Studs
MaterialsMild Steel. Zinc Plated.
Application
With 10-24 weld studs. One-piece washer-type locknut combination serving as hex nut, lockwasher and flat washer. Locking design eliminates back-off due to vibration and thermal stress.
Size
For 10-24 threaded studs a1032.jpg
